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95e2a3f024
DbgLabelInst has no address as its operands. Differential Revision: https://reviews.llvm.org/D46738 Patch by Hsiangkai Wang. llvm-svn: 336176
64 lines
2.6 KiB
LLVM
64 lines
2.6 KiB
LLVM
; RUN: opt -lcssa -S %s | FileCheck %s
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source_filename = "small.c"
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@a = common dso_local global i32 0, align 4, !dbg !0
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; CHECK-LABEL: @f
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define dso_local void @f() !dbg !10 {
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entry:
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%0 = load i32, i32* @a, align 4, !dbg !17
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%tobool1 = icmp eq i32 %0, 0, !dbg !18
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br i1 %tobool1, label %for.end, label %for.inc.lr.ph, !dbg !18
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for.inc.lr.ph: ; preds = %entry
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br label %for.inc, !dbg !18
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for.inc: ; preds = %for.inc, %for.inc.lr.ph
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%1 = phi i32 [ %0, %for.inc.lr.ph ], [ %inc, %for.inc ]
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call void @llvm.dbg.label(metadata !14), !dbg !19
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%inc = add nsw i32 %1, 1, !dbg !20
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%tobool = icmp eq i32 %inc, 0, !dbg !18
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br i1 %tobool, label %for.cond.for.end_crit_edge, label %for.inc, !dbg !18, !llvm.loop !21
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for.cond.for.end_crit_edge: ; preds = %for.inc
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store i32 %inc, i32* @a, align 4, !dbg !17
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br label %for.end, !dbg !18
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for.end: ; preds = %entry, %for.cond.for.end_crit_edge
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ret void, !dbg !23
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.label(metadata) #0
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attributes #0 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
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!3 = !DIFile(filename: "small.c", directory: "./")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = distinct !DISubprogram(name: "f", scope: !3, file: !3, line: 3, type: !11, isLocal: false, isDefinition: true, scopeLine: 4, isOptimized: true, unit: !2, retainedNodes: !13)
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!11 = !DISubroutineType(types: !12)
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!12 = !{null}
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!13 = !{!14}
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!14 = !DILabel(scope: !15, name: "L", file: !3, line: 6)
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!15 = distinct !DILexicalBlock(scope: !16, file: !3, line: 5, column: 3)
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!16 = distinct !DILexicalBlock(scope: !10, file: !3, line: 5, column: 3)
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!17 = !DILocation(line: 5, column: 10, scope: !15)
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!18 = !DILocation(line: 5, column: 3, scope: !16)
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!19 = !DILocation(line: 6, column: 3, scope: !15)
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!20 = !DILocation(line: 5, column: 14, scope: !15)
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!21 = distinct !{!21, !18, !22}
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!22 = !DILocation(line: 6, column: 5, scope: !16)
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!23 = !DILocation(line: 7, column: 1, scope: !10)
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